Fastening-inserting machine



Dec. 10, 1 929. J GQULDBOURN 1,738,574-

FASTENING INSERTING MACHINE Filed Oct. 26, 1926 3 Sheets-Sheet l Dec.10, 1929.

J. GOULDBOURN .FASTENINfi INSERTING MACHINE Filed Oct. 26, 1926 3Sheets-Sheet 3 chine.

Patented Dec. i9, 1%29 JOSEPH GOULDBOURN, 0F LEICESTEE,ENGLAND,,ASSIGNOE TO UNITED SHOE MA. 7

GHINERY CORPORATION, OF PA'IEESON, JERSEY, A. CORPORATION OF NEW JERSEYFASTENENG-INSERTING MACHINE Application filed October 26, 1926, SerialNo. 144,364, and in Great Britain November 6, 1925.

This invention relates to fastening inserting machines and isillustrated herein as embodied in a loose nailing machine of a wellknown type having a swinging head carrying a reciprocating awl arrangedto penetrate the work andthen to feed the work as the head swings, and aspring operated driver arranged to insert nails in the holes formed inthe work by the awl. I

Machines of this type, of which the machine disclosed in United StatesLetters Patent No. @90524, granted January 24, 1893, on an applicationof Louis Goddn, is an eX- ample, have been for many years and are nowused extensively for various purposes in the manufacture of boots andshoes.

As machines of this type have heretofore been built, it has been foundthat if they are speeded up beyond about 350 or 375 revolutions perminute the motion of the swinging head is too violent, causing excessivevibration and consequent wear and interfering with, or at least makingdiflicult, the control of the work by the operative as it is fed throughthe machine. In this connection it should be remembered that theswinging or' moving head of such a machine is heavy and that, as thesemachines have been built, the raceway and, in many instances, the hopperfrom which nails are supplied to the raceway, swing with the head of themachine, thus increasing the mass of metal which must be moved rapidlyback and forth and the direction of movement of which must be reversedtwice in each cycle of operation of the ma- It is. accordingly, anobject of the present invention to provide an improved fasteninginserting machine of the type having a moving head carrying an awlarranged to penetrate the work and, as the head is moved, to feed thework, which is so organized that it can be operated at a substantiallyhigher speed than is practicable with such machines as heretoforeconstructed.

In order to enable such a machine to operate smoothly and satisfactorilyat a high speed, for example in the neighborhood of 500 revolutions perminute, I have, as illustrated herein, provided a swinging head loosenailing machine so organized that the transverse back-and-forth movementof the swinging head of the machine occupies not substantially less thanabout one-half of the cycle of operation of the machine. Preferably, thework feeding movement of the swinging head occupies rather more than onequarter, as illustrated one hundred degrees, of the cycle of operation.ment occupies, relatively speaking, so much more of the cycle ofoperationthan has been the case heretofore in the operation of ma chinesof this type that the machine may be speeded up very considerablywithout excessively speeding up the movement of the swinging head. Inorder 'to do this I have found it necessary to redistribute in the cycleof operation of the machine the motions of various other parts as morefully hereinafter set forth. 7 I r I /Vhile the invention is disclosedasembodied in a swinging head fastening inserting machine, it should beunderstood that it is not necessarily limited to machines having thatkind of head movement.

With the above and other objects inview the invention will now bedescribed with ref- Thus'the head swinging move I erence to theaccompanying drawings of an Fig. l is an end elevation of themechanismof Fig. 3 with the main cam shaft of the machine in cross section; and

Fig. 5 is a cross section on an enlarged scale on the line VV of Fig. 3.

Inaccordance with the usual construction of swinging head fasteninginserting inachines the illustrated machine is provided with a main camshaft 10 concentric with the 7 bar 20 is caused by the engagement of alifting cam 24: carried by shaft 10 with a lifting block 26 clamped todriver bar 20. A spring 28 anchored at one end to a stationary part ofthe head'of the machine and connected at the other end by a link 30 withdriver bar 20 forces the driver bar and driver downwardly when cam2epasses out from under block 26, thus driving a nail into the work, andis compressed as cam 24 lifts the driver bar 20. Also carried by theswinging head 12 is a raceway 82 the passage of nails from wvhich to thethroat 3 of the machine is controlled by a separator 36 which is alsooperated from a cam upon shaft 10; The above parts and theirrelation toeach other, except for the iming of their motions and the form andarrangement ofthe cams byv which they are driven, maybe and, asillustrated, a e, of the character set forth in said Letters Patent No,490,62 towhich reference may be had for a fuller description thereof. Tosupport the w rkas the fastenings are inserted the machine is providedwith hornSS arranged to clamp the work against a presser plate 40 whichlimits its upward movement. The horn 38 is moved downwardly prior to thefeeding: movement of the swinging head and awl to release the pressurefrom the Work and upwardly to clamp the work against pressure plate 40.prior. to the insertion of each astening by suitable release mechanism,for example as disclosed in Letters Patent of the United States No.265,227, granted September 26, 1882, on an application of Louis Goddu,

7 also driven fr m cam shaft 10.

1 velocity in the illusY-r g head is such en at ine movement of theswingi' that the machine may be ch cr ased soeed of about 500revolutions per. thout substantially in creasing the minute W 5 comparedwith the old slower at which the we is fed through machines 'sive wearof the'swinging head or other parts of the machine and interference withthe control of the work by the operative are avoided.

lVith this purpose in view the back-andforth movement of the swinginghead of the illustrated machine is, as shown at D in the cam diagram ofFig. 2, distributed through about 180 of the cycle of operation of themachine, the feeding movement occupying about 100 and the returnmovement about 7 5. Inorder to devote this large portion of thecycle ofoperation of the machine to the movement of the swinging head the speedof the reciprocating motion of the awl has been relatively increased, sothat. the descent and ascent of the awl each occupies less than 420 ofthe cycle, as shown at B in F ig. 2. Also, the downward movement of thehorn as shown at C to release the pressure upon the work beginssubstantially simultaneously with, or even a little before, thecompletion of the downward movement of the awl and the feeding movementof the head starts somewhat before the horn reaches its lowermostposition and continues during something like one half of'the upwardpressure applying movement of the horn. Moreover,

the withdrawal of the awl from the work begins long before thecompletion of theupward movement of the horn, the two endingsubstantially simultaneously. These movements are clearly shown in thetiming diagram of Fig. 2 in which A represents the driver timing, B theWork penetrating and withdrawing movementof the awl, C the downwardpressure releasing ,and upward pressure applying movement of the horn orwork support, D theswinging movement of the head, E the separatormovement and F the movement of the brake applying leverwhich,

however, is idle except-toward the end of the last cycle of operationwhen the machine is being brought to rest; in considering this diathedistance that that shaft moves after the if I clutch is thrown out andthe brake applied. ated machlne the timing of Referring to 2, if themachine comes to Therelation'of the timing of the various parts of theillustrated machine will best be understood from-the following tabletaken in connection with the diagram of Fig. 2.

' Angle from point of driver descent 20Awl begins to descend. -Awl fullydown. 55Horn begins to drop. Separator begins to move back toinoperative position. 100 Feed begins. 110-Horn down. 115Separator back.155Driver begins to rise. 185-Horn begins to rise. 200Feed ends.215Separator begins to move forward to separate. 225Awl begins to rise.240-Separator dwells. 245Awl begins to return for new feed. 255Hornfully up. 260Awl fully up. 270 Separator recommences forward movement.300-Driver up. 3O0Brake pegins to come on (in last cycle only310-Separator fully forward. 320Awl returned to new feed position.320Brake on (in last cycle only). 360-Driver falls.

shown particularly in Figs. 3, a and 5. T hus,

the camshaft 10 of the machine has rotatably mounted upon it a drivingpulley v50 which,

when the machine is to be driven, ismoved axially of the shaft, to causea clutch surface 52 formed thereon to engage with a corresponding clutchsurface of a clutch member 54 fixed upon shaft 10. A spring 56surrounding shaft 10 bears, at one end uponv a collar 58 secured toshaft- 10 and at the other upon a sleeve60 keyed to shaft 10 and forminga bearing for pulley 50. At the opposite end of the sleeve. 60- is awasher 62 against which bear the ends of a plurality of rods 64 mountedin the hub 65'of the clutch member 54. The rods 6.; also bear upon therear of a wedge member or block 66 slidably mounted on shaft 10 andengaging a wedge member 68 mounted. for movement trans:- versely ofshaft 10 upon a yoke member 70. Thus. whenyoke member 70 is moveddownwardly, wedge member 68 will force wedge member 66 to the left, asviewed in Fig. 3, thus pushing rods 64$,washer 62, sleeve 60 and pulley50 to the left against the compression of spring 56 and disengaging theclutch surfacesof clutch members 50 and 54 so that shaft 10 is no longerdriven. On the other hand. when yokemember 70 is moved upwardlytheupward movement of wedgemember 68 permits-wedge member 66 to be movedat the left-hand end of which is a hardened latch block 86. Fulcrumedconcentrically with'lever 74: is a second lever 88 extendingapproximately vertically and carrying at its upper end a cam roll 92operating in a cam track formed in a cam carried by the shaft 10. At itslower end lever 88 is provided with a hardened latch block 94 arrangedwhen the machine is at rest to engage with latch block 86, as shown inFig. 4, thus holding lever 74 in the position shown in that figure withthe yoke 70 depressed so that the clutch is disengaged. A tension spring96 tends to rock lever 74. in a counter-clockwise direction, as shown inF at, while a second spring 98 tends to rotate latch'member 84 in aclockwise direction. A rod 100, movable upwardly by a" treadle 102 anddownwardly by a spring 104 when the treadle is released, is movedupwardly againstthe tail of latch 84'when the machine is to be started.Thus block 86 is moved downwardly so that lever 74 is released and isrotated in a counterclockwise direction by spring 96. This forces yoke70 and wedge 68 upwardly, permitting movement of wedge 66 to the right,as viewed in Fig. 3, under the influence of spring '56 so that, ashereinbefore set forth, shaft 10 is driven by the clutch. When thetreadle is released, however, to stop the machine, the

rod 100 descends and latch member 8-1 is rotated in a clockwisedirection by spring 98. Lever 88, which oscillates idly while themachine is running until after the treadle is released, moves in such apath that block 94 engages block 86 at a definite point in the cycle ofoperation after rod 100 has been lowered, so that lever 74 is rocked bylever 88,

forcingyoke 70 and wedge member 68 down,- wardly and therebymoving'wedge 66 to the left, compressing spring 56 and disengaging theclutch members. I

In order to bring the machine to rest promptly after the clutch isdisengaged a brake band 106 is provided engaging a brake drum 108 fastupon cam shaft 10. Brake band 106 engages drum 108 through almost ltsentire periphery. In order to tighten brakeband 106 upon drum 108 theleft end of brake band 106 (as viewed in Fig. t) is mounted upon aneccentric 110 (Figs. 3 and 4c) fixed to a sleeve 112 projecting from andcoaxial with the hub of clutch'lever 74 so that as the clutch lever 74is rocked to disengage '55 Y ly one-half of the cycle of operation ofthe the clutch, eccentric 110 is rotated to move the left-hand endofbrake band 106- into engagement with drum 108. The other end of brakeband 106 is connected by an adjustable rod 114 to clutch lever 7 4 sothat as the clutch lever moves to disengage the clutch it will alsopullthe right-hand end of brake band 106 into engagement with brake drum108.

Since the lever 88 is operated by a closed cam the brake is positivelyapplied and may be adjusted by adjusting the connection of brake band106 to rod 114:.

To release the brake and permit cam shaft 10 to be rotated, if desired,while the machine is at rest, the end of the rod 114 remote from brakeband 106 is mounted on an eccentric stud 116 which may be rotated by ahand lever 118 connected thereto provided for that purpose. Eccentricstud 116 is provided with a pair of notches or recesses 120, 122 (Fig.5) either one of which may be engaged by a spring pressed plunger 124mounted in the lever 74 to hold the stud 116 in either brake applying orbrake'releasing position. To prevent accidental engagement of the clutchwhen the brake is-thus released eccentric stud 116 has fixed to it a camor stop member 125 which, when the studis rotated to release the brake,is moved against a fixed abutment 126 to prevent movement of clutchlever 74in a direction to allow the clutch members to engage.

The clutch operating mechanism disclosed in this application is notclaimed herein since it forms the subject-matter of Letters Patent ofthe United States No. 1,696,535, granted December 25, 1928 on anapplication filed in my name.

Having described my invention, what I claim as new and desire to secureby Letters Patent of the United States is:

1. A cyclically operating machine for inserting fastenings in boot andshoe parts having a transversely moving head, an awl and a drivercarried by said head for transverse movement therewith and reciproca-blein paths substantially at right angles to its transverse movement tocause the awl to penc trate the work and cause the driver to insertmoving with the head, feeds the w0rk, said means being arranged to causethe transverse movement of the head to occupy substantialsmachinewhereby the machine may be run at a relatively high speed withoutspeeding up the feeding movement of the work through the machine.

2. A cyclically operating machine for in serting nails in boot and shoeparts having a transversely swinging head,an awl carried by the swinginghead and mounted for transverse work feeding movementw'ith the head awlin the work, a raceway carried by the head and swinging therewitharranged to supply fastenings to be inserted by the driver in the holesformed in the work by the awl, and a cam operatively connected to thehead to swing the head and the raceway back and forth transversely ofthe machine, said cam being formed and arranged to cause said swingingmovement of the head and the race way to occupy substantially one-halfof the cycle of operation of the machine. 1

3. A cyclically-operating machine for inserting fastenings in boot andshoe parts having a transversely moving head, an awl carrierreciprocable in a guide carried by the head, an awl carried by saidcarrier and arranged to penetrate and withdraw from the work, a driverbar also reciprocable in a guide carried by the head, a driver carriedby the driver bar and arrangedto insert fastenings in the holes formedin thework by the awl, and means for moving the head back and forthtransversely of the machine to cause the awl to feed the work and toreturn, arranged ing a transversely swinging head, an awl carriedby'theswinging head for transverse movement therewith and reciprocablein a path substantially at right angles to its transverse movement topenetrate the work, a driver carried by the swinging head arranged toinsert fastenings in the holes formed by the awl in the work, a cam, andconnections from the cam to the head to cause the cam to swing thehead'transversely of the machine whereby the awl, moving with the head,feeds the work, said'cam and connections being formed and arrangedtocause the feeding movement of the head and awl to occupy rather morethan a quarter of the cycle of operation of theimachine. V

5. A cyclically operating machine for ins serting nails in boot and shoeparts having a transversely swinging head, anawl carriedby the swinginghead for transverse work feeding movement therewith and reciprocable ina path substantially at right angles to its transversemovement topenetrate and withdraw from the work, a driver also carried by theswinging head arranged to insert nails in the holes formed by the awl inthe work, a'throat member carried by the swinging head and provided witha driver passage in alinement with'the driver, a raceway cararranged toconduct nails to the throat member, means for swinging the headtransversely of the machine to cause the head by engage ment of the awlwith the work to feed the work between the insertion of successive nailsand to return the head between its feeding movements, said head swingingmeans being arranged to cause the feeding movement of the head to occupysubstantially one hundred degrees of the cycle of operation of themachine whereby the machine may be driven at a relatively high speedwithout excessive.

wear of the head swinging parts and without interference with thesatisfactory feeding of the work.

6. A cyclically operating machine for inserting fastenings in boot andshoe parts having a transversely moving head, an awl carried by saidhead for transverse back and forth movement therewith and reciprocablein a path substantially at right angles to its transverse movement topenetrate and withdraw from the work, a driver also carried by said headarranged to insert fastenings in the holes formed by the awl in thework, means for moving the head transversely of the machine to cause thehead by engagement of the awl with the work to feed the work between theinsertion of successive fastenings and to return the head between itsfeeding movements, said means being arranged to cause the transverseback and forth move ment of the head to occupy substantially onehalf ofthe cycle of operation of the machine whereby the machine may be runsubstantially faster than prior moving head fastening inserting machineswithout the speed of the feeding movement of the work through themachine being substantially changed.

7 A high-speed, cyclically operating machine for inserting fastenings inboot and shoe parts having a transversely swinging head, an awl carriedby said head and mounted for transverse work feeding movement with thehead and for reciprocation substantially at right angles to itstransverse movement to penetrate and withdraw from the work, a drivercarried by said head arranged to insert fastenings in the holes formedby the awl in the work, a shaft, and means operated thereby for swingingthe head back and forth transversely of the machine arranged to causesaid back and forth movement of the head to occupy substantiallyone-half of the cycle of operation of the machine and thereby toeliminate excessively fast swinging of the head and the vibration andwear incident thereto.

8. A cycl'cz operating machine for inserting fastenings in boot and shoeparts having a head, an awl carried by the head and mounted fortransverse work feeding movement and for reciprocation substantially atright angles to its transverse movement to penetrate and vithdraw rromthe work, a

driver carried by said head arranged to in sert -=ii'astenings 1n theholes formed by' the a'wl'in'tho work, aro'ta'ting shaft, andm'e'ansoperated thereby to give the awl its work feeding "movement ar-rangedto. cause the woi'lrfeeding movement of the awl to'occupy; not lessation of the machine.

9. A; cyclically operating machine for in? serting fastoningsfin bootand shoe parts haw ing ahead, an awl carried by said head and arrangedto penetrate the work, then to move transversely of its work penetratingmove-1.

ment to feed the work, then to withdrawfrom the work, and then to'movetransversely in a direction opposite toits work feeding move; mentthereby returning to its starting position, a driver carried by saidheadand arranged to insert fastenings in the-holes formed by the awlin thework, a-rotating shaft, and a cam carried by the shaft arranged to giveto the awl its transverse work feeding and return movementsformed tocause said work feeding and return movements to occupytogethersubstantially onehalf of the cycle of operation of the machine.

10. A. fastening-inserting machine having a transversely swinginghead,an awl: and a driver carried thereby mounted for transverse workfeeding movement withthe head and reciprocating work penetrating andwithdrawing movement relatively to the head, an abutment arranged tolimit movement of the work toward the awl and driver; a work supportmovable toward and from v the abutment and arranged to force the workagainst the abutment during the insertion of the awl in the work andduring the driving; of the fastenin 's, and means for moving the: worksupport from the abutmentto release the pressure upon the work duringthefe'ech head, an abutment arranged to limit move ment of the worktoward the awl and driver, a work support movable toward and from theabutment and arranged to force the work against the abutment during theinsertion of the awl in the work and during the driving of the fastenins, and a cam for moving the work support from the abutment to releasethe pressure upon the work during the feeding movement of the awl andfor returning the work support to pressure applying position arranged tostart the pressure applying an one-quarter of the cycle of 0perreturnmovement of the work support sub stantially before the start of thewithdrawal of the awl from the work and to complete the withdrawal ofthe awl from the work not a substantially later than the completion ofthe pressure applying movement of the work support.

12. In a fastening inserting machine having a transversely swinginghead, an awlcarried by the head and mounted for transverse work feedingmovement with the head and for reciprocation substantially at rightangles to its transverse movement to penetrate and withdraw from thework, a driver also carried by the head arranged to insert fastenings inthe holes formed by the awl in the.

work, a cam connected to the head and arranged to swing the headtransversely of the machine thereby causing the awl to feed the workbetween the insertion of excessive fastcnings, said cam being formed tocause the transverse back-and-forth movement of the head to occupy notless than substantially one-half of the cycle of operation of the ma-':hine, an abutment and a work support between which the work is clampedduring both the work penetrating movement of the awl and the insertionof fastenings in theholes formed by the awl, and means for moving thework support from the abutment to relieve the pressure upon the Workduring the workfeeding movement of the awl and then to returnthe worksupport to pressure applying position arranged to'start the pressureapplying return movement of the work support before the start of thewithdrawal of the awl from the work and before the com pletion of thework feeding movement of the awl.

In testimony whereof I have signed my name to this specification.

JOSEPH GOULDBOURN.

